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Diffstat (limited to 'libcxx/include/__tuple/tuple_size.h')
-rw-r--r--libcxx/include/__tuple/tuple_size.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libcxx/include/__tuple/tuple_size.h b/libcxx/include/__tuple/tuple_size.h
index b970280fe378..27d57eb56ba6 100644
--- a/libcxx/include/__tuple/tuple_size.h
+++ b/libcxx/include/__tuple/tuple_size.h
@@ -29,7 +29,7 @@ struct _LIBCPP_TEMPLATE_VIS tuple_size;
#if !defined(_LIBCPP_CXX03_LANG)
template <class _Tp, class...>
-using __enable_if_tuple_size_imp = _Tp;
+using __enable_if_tuple_size_imp _LIBCPP_NODEBUG = _Tp;
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp< const _Tp,